Backflow Testing & Prevention

Mastercraft Mechanical & Plumbing provides certified backflow testing, prevention, repair, and compliance services throughout Central Pennsylvania. 

Backflow devices play a critical role in protecting drinking water supplies from contamination caused by cross-connections and changes in water pressure. Our technicians help homeowners, businesses, municipalities, restaurants, medical facilities, and commercial properties maintain safe, code-compliant water systems.

What We Do

Our backflow services include:

• Annual backflow testing

• Backflow preventer inspections

• Backflow device repairs

• Backflow preventer replacement

• New backflow device installation

• Cross-connection evaluations

• Compliance documentation

• Commercial and municipal testing

• Irrigation system backflow testing

• Water system safety inspections

Our goal is to ensure your drinking water remains protected while helping you meet local and state requirements.

Common Problems We Solve

• Failed annual backflow inspections

• Leaking backflow preventers

• Water contamination concerns

• Cross-connections between potable and non-potable systems

• Frozen or damaged devices

• Improperly installed assemblies

• Missing testing documentation

• Commercial compliance violations

• Irrigation system backflow issues

• Reduced water pressure caused by faulty devices

Signs You Need Backflow Service

You may need backflow testing or repair if:

• Your annual certification is due

• Water quality appears unusual

• You own a commercial building

• You operate an irrigation system

• You recently modified your plumbing system

• Your municipality requires annual testing

• A backflow preventer is leaking

Why Choose Mastercraft Mechanical & Plumbing

• Certified testing services

• Commercial and residential experience

• Code-compliant documentation

• Fast scheduling

• Experienced plumbing technicians

• Locally owned and operated

• Central Pennsylvania service coverage

Frequently Asked Questions

What is backflow?

Backflow occurs when contaminated water flows backward into a clean drinking water supply due to pressure changes.

How often should backflow devices be tested?

Most commercial and irrigation systems require annual testing, though local requirements may vary.

Is backflow testing required?

Many municipalities require annual testing for commercial buildings, irrigation systems, and certain plumbing installations.

Can a backflow preventer be repaired?

Many devices can be repaired, but replacement may be recommended depending on age and condition.

Helpful Tips

• Schedule annual testing before deadlines.

• Protect outdoor assemblies from freezing.

• Keep records of inspections and certifications.

• Address leaks immediately.

• Never bypass a backflow preventer.

Service Areas

Mastercraft Mechanical & Plumbing proudly serves Dauphin, Cumberland, York, Lebanon, Lancaster, Perry, Adams, Berks, and Chester Counties.

Need Backflow Testing or Prevention Services?

Call Mastercraft Mechanical & Plumbing today to schedule certified backflow testing, repairs, or installation services throughout Central Pennsylvania.